.buttonDiv {
    width: 150px;
    height: 50px;
    font-size: 18px;
    color: aliceblue;
    border-radius: 10px;
    background: #4a90e2;
    text-align: center;
    line-height: 50px;
}

.buttonDiv:active {
    color: #4a90e2;
    background: aliceblue;
}